chore(bazel): update protobuf to v3.21.3 (#1424)

- [ ] Regenerate this pull request now.

chore(bazel): update gax-java to 2.18.4

PiperOrigin-RevId: 463115700

Source-Link: googleapis/googleapis@52130a9

Source-Link: https://github.com/googleapis/googleapis-gen/commit/6a4d9d9bb3afb20b0f5fa4f5d9f6740b1d0eb19a
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiNmE0ZDlkOWJiM2FmYjIwYjBmNWZhNGY1ZDlmNjc0MGIxZDBlYjE5YSJ9

Author: gcf-owl-bot[bot]

java-bigquerydatatransfer/proto-google-cloud-bigquerydatatransfer-v1/src/main/java/com/google/cloud/bigquery/datatransfer/v1/ListTransferLogsRequest.java

@@ -1326,8 +1326,8 @@ public int getMessageTypesValue(int index) {
      * repeated .google.cloud.bigquery.datatransfer.v1.TransferMessage.MessageSeverity message_types = 6;
      * </code>
      *
-     * @param index The index of the value to return.
-     * @return The enum numeric value on the wire of messageTypes at the given index.
+     * @param index The index to set the value at.
+     * @param value The enum numeric value on the wire for messageTypes to set.
      * @return This builder for chaining.
      */
     public Builder setMessageTypesValue(int index, int value) {

java-bigquerydatatransfer/proto-google-cloud-bigquerydatatransfer-v1/src/main/java/com/google/cloud/bigquery/datatransfer/v1/ListTransferRunsRequest.java

@@ -1305,8 +1305,8 @@ public int getStatesValue(int index) {
      *
      * <code>repeated .google.cloud.bigquery.datatransfer.v1.TransferState states = 2;</code>
      *
-     * @param index The index of the value to return.
-     * @return The enum numeric value on the wire of states at the given index.
+     * @param index The index to set the value at.
+     * @param value The enum numeric value on the wire for states to set.
      * @return This builder for chaining.
      */
     public Builder setStatesValue(int index, int value) {